Schedule 40 PVC Pipe Male adapters are used when connecting 2 parts with 2 different end types, a male adapter has a male (mipt) thread on 1-side and a slip socket on the opposing side. They are used to adapt a cemented or solvent welded connection to a female thread connection. The Slip x Mipt Male Adapter is the most common type of male adapter. It contains a male (mipt) connection on 1 end and has a slip socket connection on the other end. So, for example, if you want to connect a 3/4 in. smooth pipe to a 3/4 in. female socket, you would use a 3/4 in. Slip/Mipt Male Adapter. All of our Schedule 40 fittings are NSF rated 14 and 61, which means they are certified for use with potable (drinking) water. Maximum temperature is 140°F. Color: White.